제출 #41487

#제출 시각아이디문제언어결과실행 시간메모리
41487festPalembang Bridges (APIO15_bridge)C++14
0 / 100
2 ms428 KiB
// fest #include <bits/stdc++.h> #define pb push_back #define F first #define S second #define y1 dasdasfasfas #define x1 wqdadfasfasfas #define All(c) c.begin(), c.end() #define SZ(A) (int((A).size())) #define umap unordered_map #define FILENAME "" #define __ fflush(stdout) typedef long long ll; typedef long double ld; using namespace std; void FREOPEN() { #ifdef COMP freopen(".in", "r", stdin); freopen("1.out", "w", stdout); #else freopen(FILENAME".in", "r", stdin); freopen(FILENAME".out", "w", stdout); #endif } inline double Time() {return (clock() * 1.0) / CLOCKS_PER_SEC; } const int N = 200500, inf = 1e9, MOD = (int)1e9 + 7; char CH[N]; const ll INF = 1e18; const int dx[] = {1, -1, 0, 0, -1, 1, -1, 1}; const int dy[] = {0, 0, 1, -1, -1, 1, 1, -1}; vector<pair<int, int> > all; ll calc(int p1, int p2) { ll ret = 0; for (int i = 0; i < SZ(all); i++) { ret += min(abs(all[i].F - p1) + abs(all[i].S - p1), abs(all[i].F - p2) + abs(all[i].S - p2)); } return ret; } int main() { #ifndef ONLINE_JUDGE FREOPEN(); #endif int k, n; cin >> k >> n; ll un = 0; vector<int> have; for (int i = 1; i <= n; i++) { char t1, t2; int p1, p2; scanf("\n%c %d %c %d", &t1, &p1, &t2, &p2); if (t2 == 'A') swap(t1, t2), swap(p1, p2); if (t1 == t2) { un += abs(p2 - p1); continue; } all.pb({p1, p2}); have.pb(p1); have.pb(p2); have.pb(min(inf, p1 + 1)); have.pb(min(inf, p2 + 1)); have.pb(max(0, p1 - 1)); have.pb(max(0, p2 - 1)); } sort(All(have)); have.resize(unique(All(have)) - have.begin()); ll mn = INF; if (k == 2) { for (auto i : have) { for (auto j : have) { mn = min(mn, calc(i, j)); } } } else { for (auto i : have) mn = min(mn, calc(i, i)); } un += SZ(all); cout << mn + un; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

bridge.cpp: In function 'void FREOPEN()':
bridge.cpp:25:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen(FILENAME".in", "r", stdin);
                                     ^
bridge.cpp:26:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen(FILENAME".out", "w", stdout);
                                       ^
bridge.cpp: In function 'int main()':
bridge.cpp:63:45: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("\n%c %d %c %d", &t1, &p1, &t2, &p2);
                                             ^
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